Add script to static to gzip logs & rm >183d old

Add script and cron job to consolidate find through
/srv/static/logs/ to gzip files and to search for .gz files
over 183 days old and empty directories over a day old and
remove them.

Change-Id: I78f08852c8ee45fe8234d6b8ea0e25e199216cfd
Reviewed-on: https://review.openstack.org/26049
Reviewed-by: Clark Boylan <clark.boylan@gmail.com>
Reviewed-by: Monty Taylor <mordred@inaugust.com>
Reviewed-by: James E. Blair <corvus@inaugust.com>
Approved: James E. Blair <corvus@inaugust.com>
Tested-by: Jenkins